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<title>Uninstall Traffosim</title>
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<pre class="style1">Use Case 4 UC4: Uninstall Traffosim</pre>
<pre>&nbsp;</pre>
<pre><strong>Primary Actor</strong>: Installer</pre>
<pre>&nbsp;</pre>
<pre><strong>Stakeholders and Interests</strong>:</pre>
<pre>&nbsp;&nbsp; - Installer: Wants to completely uninstall the TraffoSim program.</pre>
<pre>&nbsp;</pre>
<pre><strong>Preconditions</strong>:</pre>
<pre>&nbsp;&nbsp; - The TraffoSim program has been installed.</pre>
<pre>&nbsp;&nbsp; </pre>
<pre><strong>Success Guarantee (postconditions)</strong>:</pre>
<pre>&nbsp;&nbsp; - The TraffoSim program is completely removed from the computer.</pre>
<pre>&nbsp;</pre>
<pre><strong>Main Success Scenario (or Basic Flow)</strong>:</pre>
<pre>  1. Installer goes to &quot;Control Panel&quot;, click on &quot;Add and Remove Programs&quot;.</pre>
<pre>  2. A window that contains a list of program currently installed on the comptuter is popped up.</pre>
<pre>  3. Installer chooses TraffoSim Program from the list.</pre>
<pre>  4. The computer prompts the installer if he or she really to delete the program.</pre>
<pre>  5. The Installer chooses Yes.</pre>
<pre>  6. The computer prompts the installer if he or she really wants to remove the data.</pre>
<pre>  7. The installer chooses Yes.</pre>
<pre>  8. The computer uninstalls the program.</pre>
<pre>  9. Uninstall finishes and the computer prompts the installer to restart the computer.</pre>
<pre>  10. The installer restarts the computer.</pre>
<pre>  11. After the computer restarts, the installer verifies that TraffoSim is removed from the computer.</pre>
<pre>&nbsp;</pre>
<pre><strong>Extensions (or Alternative Flows)</strong>:</pre>
<pre>9a. The computer does not prompt the installer to restart the computer.</pre>
<pre>  1. Installer manually restarts the computer.</pre>
<pre>&nbsp;</pre>
<pre><strong>Special Requirements</strong>:</pre>
<pre>&nbsp;&nbsp;&nbsp; n/a</pre>
<pre>&nbsp;</pre>
<pre><strong>Technology and Date Variations List</strong>:</pre>
<pre>&nbsp;&nbsp;&nbsp; n/a</pre>
<pre>&nbsp;</pre>
<pre><strong>Frequency of Occurrence</strong>:</pre>
<pre>Rarely, only when the installation is corrupted and the installer want to reinstall the TraffoSim.</pre>
<pre>&nbsp;</pre>
<pre><strong>Open Issue</strong>:</pre>
<pre>n/a</pre>
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